In a second incident, four climbers were stranded near Hogsback, with one person injured. Deputies said that person’s injuries were not life-threatening, but while the group was in a safe location, moving down from that spot was considered hazardous. The group was staying put until reached by rescue crews.

Another group of climbers above the first group ended up joining them to wait for rescue crews, according to deputies.

Crews were working “feverishly” to reach all the climbers, according to the Clackamas County Sheriff’s Office.

Portland Mountain Rescue also had a team responding to the scene. A spokesman for Portland Mountain Rescue said conditions in the crater area are dangerous due to falling ice and rock.

Authorities said weather conditions in the Hogsback area on Mount Hood were expected to worsen overnight.